Potatoes: growing an early crop of newis a rather extravagant way of using cloches, as the return is not very large, but it will allow you to enjoy delicious potatoes at a time when they are very expensive in the shops. Large cloches are essential for this crop, because if the potatoes are de-cloched too early, the haulm may be damaged or killed by frosts. Also, it is important that the leaves do not press against the glass. Place the cloches in position about two weeks before planting the tubers, to warm up the . The tubers should be chitted before being planted 30 cm (12”) apart and about 7.5 cm (3”) below the soil surface in drills 15 cm (6”) deep, half-filled with well-rotted garden com post or leafmould. There will be room for one row of tubers under each row of large cloches. As the plants grow, you must earth them up. Do not remove the cloches until you are ready to harvest the tubers.